Panasonic TC-L42D30 Quick start guide

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Title Page1
Panasonic National Training
Panasonic Service and Technology Company
2011 LCD TV Technical Guide
2011-LCD HD/FHD TV
TC-L42D30
TC-L37DT30
TC-L32DT30
TC-L42E30
TC-L42E3
TC-L37E3
TC-L32E3
TC-L19C30
Applies to models:
TTG110708JM

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Prepared by
Jean Magloire
Panasonic Service and Technology Company
National Training
Warning
This service information is designed for experienced repair technicians only and is not designed for use by the
general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in
attempting to service a product. Products powered by electricity should be serviced or repaired only by
experienced professional technicians. Any attempt to service or repair the product or products dealt with in this
service information by anyone else could result in serious injury or death.
Copyright © 2011 by Panasonic Service and Technology Company
All rights reserved. Unauthorized copying and distribution is a violation of law.
"HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.“
Warning

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Table of Contents
Content Page Content Page
Topics 4Audio Process Circuit 43
New Panel for 2011 - IPS LED LCD 5SOS Detect (Shutdown) 44
Highlights 6TC-L37DT30 Power LED Diagnostic Codes 45
2D-3D Conversion 10 TC-L37DT30 Shutdown Circuit Block Diagram 46
2011 Series/Models 11 TC-L42D30 Power LED Diagnostic Codes 47
2011 DT30 Series 12 Protection Circuit (TC-L32/37DT30,TC-L42D30) 48
2011 LCD TV Specifications (1) 13 One Blink of The power LED (TC-L37DT30) 49
2011 LCD TV Specifications (2) 14 Seven Blinks of The power LED (TC-L37DT30) 50
TC-L37DT30 Board Layout 15 Nine Blinks of The Power LED (TC-L37DT30) 51
TC-L37DT30 Connectors 16 10, 13 and 14 Blinks of The Power LED (TC-L37DT30) 52
TC-L37DT30 T-CON & LED Driver 17 Protection Circuit (TC-L42E3) 53
TC-L42D30 Board Layout 18 Protection Circuit (TC-L37E3/L32E3 and TC-L32X30) 54
TC-L42D30 Connectors 19 Protection Circuit (TC-L42E30) 55
TC-L42D30 P Board 20 Nile-T-CON SOS Detection 56
TC-L42D30 A Board 21 Protection Circuit (TC-L42U30) 57
TC-L42D30 LD Board (LED Driver) 22 Protection Circuit (TC-L37U3) 58
TC-L37DT30 Standby Power (1) 23 IC4700 Block Diagram 60
TC-L37DT30 Power On Operation 28 TC-L42D30 Service Mode 61
TC-L37DT30 Voltage Distribution 30 How to Enter the Service Mode’s SRV-TOOL 62
TC-L42E3 LED Backlight Control 32 TC-L42D30 How to Enter the Self-check Mode 63
TC-L37E3 LED Backlight Power Circuit 34 Troubleshooting Picture Problem 64
TC-L42D30 LED Backlight Power Circuit 36 Panel Free Run Mode 73
TC-L37DT30 CPU Commands Explanation 38 Data Copy using SD Card 74
TC-L37DT30 Video Input and Process 39 Glossary 78
TC-L37DT30 Eyewear Control Signal 41

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Topics
1. Features
2. Start-up Operation
A) Stand by Operation
B) Power On Operation
C) Voltage Distribution
3. Signal process Circuit
A) Video Signal
B) Audio Signal
4. SOS Detect
5. Service Notes
A) Service Mode
B) SRV-TOOL
C) Self check
6. Troubleshooting
7. Data Copy Function (SD card)
7. Glossary

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New Panel for 2011 - IPS LED LCD

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Highlights

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The New World of Smart VIERA

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Concept of the IPTV World

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Evolution of the IPTV World and Its Future Expansion

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2D-3D Conversion

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2011 Series/Models
Series 42” 37” 32” 24” 19”
DT Series
FHD-3D TC-L37DT30 TC-L32DT30
D Series
FHD TC-L42D30
E30 Series
FHD TC-L42E30
E3 Series
FHD TC-L42E3 TC-L37E3 TC-L32E3
U30 Series
FHD TC-L42U30
U3 Series
FHD TC-L37U3 TC-L32U3
X30 Series
HD TC-L32X30
C30 Series
HD TC-L19C30
C3 Series
HD TC-L32C3 TC-L24C3

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2011 DT30 Series
FULL HD 3D Eyewear bundled1
Flush Design2
IPS Alpha LED LCD Panel
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240Hz with Motion Picture Pro5
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• FULL HD 3D
• IPS Alpha LED LCD Panel
• 240Hz Motion Picture Pro5
• 2D/3D 24p Smooth Film
• Dynamic Contrast 5,000,000:1
•ClearPanel
• ISFccc Calibration Mode1
• 3D Super Resolution
•ProSetting
• VIERA Connect with Wi-Fi
(Wireless LAN Adaptor Included)
• 3D Image Viewer™2
•DLNA
• VIERA Link™
• 4 HDMI Terminals
• 3 USB Terminals
• Game Mode
• PC Input Terminal
Link
TC-L37DT30
TC-L32DT30
ECO Others
•EnergyStar
• Eco Function • Flush Design
•Swivel
• 3D Eyewear Included
One pair of 3D eyewear included
Wireless
LAN
Adaptor
Image
1 ISF and IMAGING SCIENCE FOUNDATION are trademarks owned by Imaging Science Foundation, Inc. This function is exclusively for
calibrator use. It is not intended for use by ordinary consumers. 2 AVCHD / SD-VIDEO / Motion JPEG [Lumix] / MP4 / MKV / JPEG / MPO /
MP3 / AAC / LPCM playback.

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2011 LCD TV Specifications (1)
Features
/Series DT Series
FHD D Series FHD
E30
Series
FHD
E3 Series
FHD
U30
Series
FHD
U3 Series
FHD
X30
Series
HD
C30
Series
HD
C3 Series
HD
Image
Resolution 3D 1080P 1080P 1080P 1080P 1080P 1080P 720P 720P 720P
IPS Alpha
LED LCD
Panel Yes Yes Yes Yes IPS
Alpha
Panel
IPS Alpha
Panel IPS Alpha Panel Yes IPS Alpha Panel
Motion
Picture Pro
Technology
240Hz
Motion
Picture Pro5
120Hz
Motion
Picture
Pro4
120Hz
Motion
Picture
Pro4
-
120Hz
Motion
Picture
Pro4
- - - -
24p Smooth
Film
3D/2D 24p
Smooth
Film
24p
Smooth
Film - - Yes - - - -
Dynamic
Contrast 5,000,000:1 5,000,000:1 4,000,000:1 3,000,000:1 20000:1 20000:1 20000:1 2000000:1 20000:1
Clear Panel Yes Yes Yes Fine Black
Panel
Fine
Black
Panel
Fine Black
Panel Fine Black Panel Fine Black Panel
Super
Resolution 3D Yes Yes Yes Yes Yes Yes Yes Yes
ISFccc
Calibration
Mode1 Yes Yes - - - - - - -
Pro Setting Yes - - - - - - - -

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2011 LCD TV Specifications (2)
Features/S
eries DT Series
FHD D Series FHD
E30
Series
FHD
E3
Series
FHD
U30
Series
FHD
U3 Series
FHD
X30
Series
HD
C30
Series
HD
C3
Series
HD
Link
VIERA
Connect Yes Yes - - - - - - -
EASY
IPTV™ - - Yes Yes - - Yes - -
DLNA Yes Yes Yes yes - - Yes Yes -
Wi-Fi Ready Yes Yes Yes yes - - Yes - -
(Wireless
LAN
Adaptor
Included)
Yes
(Wireless
LAN
Adaptor
Capable)
(Wireless
LAN
Adaptor
Capable)
(Wireless
LAN
Adaptor
Capable)
- -
(Wireless
LAN
Adaptor
Capable)
- -
VIERA
Link™ Yes Yes Yes Yes Yes Yes Yes Yes Yes
HDMI
Terminals 4 4 4 4 3 3 3 32 (32C3)
1 (24C3)
USB
Terminals 3 3 2 2 - - 1 1Yes
Game Mode Yes Yes yes Yes Yes -Yes yes -
PC Input
Terminal Yes Yes yes Yes Yes -Yes yes -

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Board Name Function
A-Board Main Board - non-serviceable - exchanged for service
KA-Board Remote Receiver, LED, Cat's eye
P-Board Power supply - non-serviceable - exchanged for service
S-Board Power switch
V-Board 3D IR Transmitter
TC-L37DT30 Board Layout
PA
LED DRIVER &
T-CON

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TC-L37DT30 Connectors

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TC-L37DT30 T-CON & LED Driver
CN 901
CN 902
CN 709
CN 705
12V TP
A disconnected connector CN902, or CN903 provides 1 blink of the
power LED after 4 seconds of power On.
A disconnected connector CN709 provides 10 blink of the power LED
after power On.
A disconnected connector CN705 (LVDS Cable) provides 10 blink of the
power LED after power On.
CN 901 To P4
Pin # Voltage
124V
224V
324V
424V
524V
6GND
7GND
8GND
9GND
10 GND
11 BL_SOS
12 BL_ON
13 GND
14 PWM
CN 709 To A16
Pin # Voltage
1PANEL_12V
2PANEL_12V
3PANEL_12V
4PANEL_12V
5GND
6GND
7GND
8GND
CN 902 or CN903 To PANEL LEDs
PIN# 12345 6 7 8910
Volt 67V NC 10V 9V 8.3V 6.7V 8.3V 10V NC 67V
CN 903
A disconnected connector CN901 provides 1 blink of the power LED
after approximately 24 seconds of power On.

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Board Name Function
A-Board Main Board - Non-serviceable - Exchanged for service
KA-Board Remote Receiver, LED, CAT's eye
P-Board Power Supply - Non-serviceable - Exchanged for service
LD-Board LED Driver - Non-serviceable - Exchanged for service
S-Board Power switch
TC-L42D30 Board Layout
P A
LD
T-CON

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TC-L42D30 Connectors
PA
P2
A15
A10
Key scan
To Speakers
STB5V
F15V
SUB ON
Backlight ON
BL_SOS
PWM
Key
To LED Backlight
KA KA10 Power LED, Remote receiver
LD
P4
P1
A02
SS10
To Panel
Drive
A12
24V
PWM
BL_ON
BL_SOS
TIMING
CONTROL

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TC-L42D30 P Board
Measure Voltages at the
connectors. No test point (TP)
needed
CN P2
CN P4
CN P2 P-Board
Pin # Voltage
1NC
2 GND
3PWM
4BL_ON
5BL_SOS
6MAIN_ON
7KEY
8RLY
9SUB_ON
10 GND
11 16V
12 16V
13 16V
14 GND
15 5V
CN P4 P-Board
Pin # Voltage
1PWM
2 GND
3BL_ON
4BL_SOS
5 GND
6 GND
7 GND
8 GND
9 GND
10 24V
11 24V
12 24V
13 24V
14 24V